Hardrace Pillow Ball Rear Knuckle Bushing Lower Arm Side Fits Most Subaru Models | Precise Control | Suspension Upgrade
Overview
The Hardrace Pillow Ball Rear Knuckle Bushing for the lower arm side is a direct replacement suspension component designed to enhance driver feedback and control across a wide range of Subaru models. This upgrade is ideal for enthusiasts seeking a firmer, more connected feel from their rear suspension without sacrificing durability. By replacing the factory rubber bushings with precision-engineered pillow ball joints, this part sharpens steering response and improves overall suspension solidity.
Engineered with a high molecule plastic inner tube combined with a specific metal alloy, the bushing ensures high durability and long-lasting performance. The outer bushing features a TPV material anti-dust boot that provides 100% resistance to dust, water, and oil, significantly extending the service life compared to OEM components. Hardrace’s focus on quality materials and precise manufacturing makes this bushing a standout choice for Subaru owners looking to upgrade their suspension’s responsiveness.
For Subaru drivers, this pillow ball bushing translates to a noticeable increase in steering precision and suspension feedback, especially during spirited driving or track use. The solid spherical joint bearing design reduces unwanted deflection and enhances stability, delivering a more confident and controlled driving experience. Compatible with many Subaru models including WRX, STI, Forester, Legacy, Outback, Impreza, Crosstrek, BRZ, and GR86, this bushing is a practical upgrade for improving chassis dynamics while maintaining OEM fitment standards.
Features & Specifications
This Hardrace Pillow Ball Rear Knuckle Bushing is engineered for a broad range of Subaru platforms and features a durable pillow ball joint design with a 40mm outer diameter. Constructed from high molecule plastic, metal alloy, and TPV anti-dust boot materials, it delivers precise suspension control and extended durability for Subaru enthusiasts seeking improved handling and suspension feel.
-
Brand: Hardrace
-
Product: Pillow Ball Rear Knuckle Bushing Lower Arm Side
-
Part Number: HR-7492
-
Fitment: Most Subaru models including WRX, STI, Forester, Legacy, Outback, Impreza, Crosstrek, BRZ, GR86 (2004-2026)
-
Material: High molecule plastic tube, metal alloy, TPV anti-dust boot
-
Finish: Natural metal and black TPV boot
-
Construction: Precision molded spherical joint bearing
-
Origin: Not specified
-
Outer Diameter (OD): 40mm (OEM equivalent 20257-XA000)
Key Benefits
-
Performance: Enhances steering response and suspension feedback for a more connected driving experience
-
Durability: High-quality materials and anti-dust boot provide excellent resistance to contaminants and extend service life
-
Fitment: OEM direct replacement ensures straightforward installation and compatibility across many Subaru models
-
Control: Solid spherical joint bearing reduces deflection and improves chassis stability under load
-
Quality: Precision engineering and robust construction deliver consistent performance on street and track
What's Included
- 2× Hardrace Pillow Ball Rear Knuckle Bushings (Lower Arm Side)
- Anti-dust boots integrated
- Installation instructions (if provided)
Installation & Compatibility
Installation of the Hardrace Pillow Ball Rear Knuckle Bushing is generally straightforward as it is designed as an OEM direct replacement for the lower arm side knuckle bushing. Basic suspension disassembly tools are required, and some mechanical experience is recommended to ensure proper fitment and torque specifications. No special modifications are necessary, but alignment after installation is advised to maintain optimal handling characteristics. This upgrade is compatible with a wide range of Subaru models from 2004 through 2026, including WRX, STI, Forester, Legacy, Outback, Impreza, Crosstrek, BRZ, and GR86. Verify fitment for your specific year and trim before purchase.
-
Professional Installation: Recommended for best results
-
Modifications Required: None
-
Verify Compatibility: Confirm fitment for your specific Subaru model and year
Shop with confidence at Subimods—your Subaru parts specialists.